api5000’Obsolete’, ’discontinued’ or ’withdrawn’ API flanges have not been included in the above slide rule. Important note:- the above slide rule assumes ambient temperatures. Additionally, asAPI6A (6BX) FLANGES Rating:- API 6BX-10000 PSI WP (With BX type Ring Gasket) Size OD T ØK PCD N Ød ØJ2 J3 BX 113⁄ 16 21⁄ 16 29⁄ 16 7.38 7.88 9.12 1.66 1.73 2.02